GB1033180A - Two-stage reading device for length and angle measuring scales - Google Patents

Two-stage reading device for length and angle measuring scales

Info

Publication number
GB1033180A
GB1033180A GB50652/63A GB5065263A GB1033180A GB 1033180 A GB1033180 A GB 1033180A GB 50652/63 A GB50652/63 A GB 50652/63A GB 5065263 A GB5065263 A GB 5065263A GB 1033180 A GB1033180 A GB 1033180A
Authority
GB
United Kingdom
Prior art keywords
scale
fine
slide
rack
coarse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB50652/63A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss Sports Optics GmbH
Original Assignee
M Hensoldt and Soehne Optische Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by M Hensoldt and Soehne Optische Werke AG filed Critical M Hensoldt and Soehne Optische Werke AG
Publication of GB1033180A publication Critical patent/GB1033180A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/04—Design features of general application for driving the stage of lowest order
    • G06M1/06—Design features of general application for driving the stage of lowest order producing continuous revolution of the stage, e.g. with gear train
    • G06M1/068—Design features of general application for driving the stage of lowest order producing continuous revolution of the stage, e.g. with gear train with switching means between two or more counting devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/27—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum
    • G06M1/276—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using mechanically-actuated contacts
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/38—Design features of general application for varying ratio of drive or transfer mechanism, e.g. by using alternative counting trains
    • G06M1/385—Design features of general application for varying ratio of drive or transfer mechanism, e.g. by using alternative counting trains differentials
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/10—Calibration or testing
    • H03M1/1009—Calibration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1,033,180. Machine tool details. M. HENSOLDT UND SOHNE, OPTISCHE WERKE A.G. Dec. 23, 1963 [Jan. 5, 1963], No. 50652/63. Heading B3B. [Also in Division G1] A two-stage scale reading device for use in measuring lengths or angles comprises coarse and fine counting mechanisms 4, 5 with tens transmission and optical and mechanical means which drive the fine mechanism 5 and the number wheel 18 for the lowest decimal place of the coarse mechanism, the number wheel being turned back by an amount corresponding to the fraction of a measuring scale interval indicated in the fine mechanism. Motion of a machine tool slide is transmitted to the counting mechanism 4 by a pinion 7 engaging a rack 6 on the slide, chain gearing 8, differential gears 9, 14 and spur gears 15, 16 and 17, 18. To obtain a precise reading, the image of a graduation on a scale 1 on the slide is projected through a plane plate 20 and a micrometer screw 29 is rotated to move rack gearing 30, 32 and tilt the plate 20 until photo-cells 26, 27 receiving light from the scale are balanced as indicated by a magic eye 28. Displacement of the rack 30 rotates the differential gear 9 through a lever 34, thus affecting the coarse mechanism 4 and rotation of the screw 29 is conveyed to the fine measuring mechanism 5 by chain gearing 35. A knob 40 is used to reset the counters. In a modification, the micrometer screw 43, Fig. 4 (not shown), rotates a rhombic prism 41 to obtain a symmetrical setting in a photoelectric device above the prism. The latter device can be adjusted to read a scale at right angles to the scale 1. In a further modification, the number wheels of the counting mechanisms rotate brushes 53, Fig. 7 (not shown), to give a luminous indication on tubes 56. These indications can be repeated or printed. In further modifications, the scale co-operates with a displaceable grid or a scanning slit.
GB50652/63A 1963-01-05 1963-12-23 Two-stage reading device for length and angle measuring scales Expired GB1033180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH47885A DE1266988B (en) 1963-01-05 1963-01-05 Two-stage reading device for length or angle divisions

Publications (1)

Publication Number Publication Date
GB1033180A true GB1033180A (en) 1966-06-15

Family

ID=7156526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50652/63A Expired GB1033180A (en) 1963-01-05 1963-12-23 Two-stage reading device for length and angle measuring scales

Country Status (4)

Country Link
US (1) US3382369A (en)
CH (1) CH412363A (en)
DE (1) DE1266988B (en)
GB (1) GB1033180A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527953A (en) * 1966-12-28 1970-09-08 Optomechanisms Inc Photoelectric line detector
US10591322B2 (en) * 2015-06-26 2020-03-17 Jinan Richnes Electronic Co.Ltd Through-beam multi-digit dry meter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2916961A (en) * 1959-12-15 Schwidefsky
US2980328A (en) * 1956-10-03 1961-04-18 Collins Radio Co Counter mechanism
US3068741A (en) * 1957-03-22 1962-12-18 Askania Werke Ag Objective reading of scales
DE1115061B (en) * 1957-09-07 1961-10-12 Zeiss Carl Fa Counter for quick sequence of numbers
US3083570A (en) * 1958-03-19 1963-04-02 Sinclair Research Inc Automatically supervised flow meter apparatus
US3076374A (en) * 1958-04-07 1963-02-05 Frederic W Olmstead System and mechanism for measuring displacements
US3197648A (en) * 1960-09-06 1965-07-27 Honeywell Inc Optical measuring apparatus using time interval

Also Published As

Publication number Publication date
US3382369A (en) 1968-05-07
DE1266988B (en) 1968-04-25
CH412363A (en) 1966-04-30

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